WYEOMYIA CACODELA 129 



WYEOMYIA CACODELA Dyar & Knab. 



Wyeomyia galoa Busck (not Dyar & Knab), Smiths. Misc. Colls., quart, iss., lit, 72, 



1908. 

 Wyeomyia cacodela Dyar & Knab, Smiths. Misc. Colls., quart, iss., lii, 265, 1909. 



Original Description of Wyeomyia cacodela: 



Proboscis moderate, swollen towards the apex. Occiput clothed with dark scales, 

 a narrow white margin along the eyes. Prothoracic lobes blackish with dull bronzy 

 and blue reflection. Abdomen with the colors separated on the sides in a straight 

 line. Wing-scales broadly ovate, their tips obliquely subtruncate. Legs black with 

 bronzy and blue reflections, without white markings in the female, the male with 

 the mid legs brassy beneath, the hind tarsi with the last two joints silvery white 

 beneath. Length, 3.3 mm. 



Three specimens, selected from a series, Tabernilla, Canal Zone, Panama, bred 

 from larvae in flower-cups of Heliconia (A. Busck) ; Gorgona, Canal Zone, Panama, 

 from flowers of Heliconia (A. H. Jennings). 



Type no. 12183, U. S. N. M. 



This species is very similar to W. galoa D. and K., and was so identified by us for 

 Mr. Busck, and published in his report on the mosquitoes of the Canal Zone. The 

 hind feet of the male, however, are differently colored. 



Description of Female, Male, and Larva of Wyeomyia cacodela: 



Female. Proboscis moderate, swollen apically, vestiture black with a bronzy 

 and blue reflection; labellae small, rounded, with fine outstanding setas. Palpi 

 short, flattened, one-fifth as long as proboscis, bronzy black. Antennae mod- 

 erate, the joints slender, subequal, rugose, coarsely pilose, black; tori sub- 

 spherical, with a cup-shaped apical excavation, dark brown, with a whitish 

 pruinosity; hairs of whorls long, rather sparse, black. Clypeus rounded, con- 

 vex, dark brown, pruinose. Eyes separated at the vertex by a narrow wedge, 

 bluish black. Occiput clothed with flat dark-brown scales with a metallic 

 reflection ; a very narrow white border along the eyes, joined to a white patch 

 below ; two setse at vertex, and smaller ones along the eye margin. 



Prothoracic lobes elliptical, well separated, clothed with flat scales, black, 

 with a dull bronzy and blue reflection; a row of setae on anterior margin. 

 Mesonotum clothed with elliptical, flat dark-brown scales with bronzy and blue 

 reflection; scales below lateral angles dull gray with a blue reflection; hairs 

 over roots of wings brown. Scutellum trilobate, with the vestiture similar to and 

 continuous with that of mesonotum, each lobe with a small tuft of brown 

 bristles. Postnotum elliptical, prominent, brown, a faint median carina, a 

 group of small setae near posterior margin. Pleurae dark brown, coxae luteous, 

 clothed with elliptical, flat silvery-white scales. 



Abdomen subcylindrical, compressed, truncate apically and with many long, 

 dark-brown terminal setse; dorsal vestiture black, with a slight metallic reflec- 

 tion ; venter yellowish white, the colors separated on the sides in a straight line. 



Wings rather narrow, hyaline; petiole of second marginal cell one-fourth 

 as long as its cell, that of second posterior cell slightly shorter than its cell; 

 basal cross-vein distant more than its own length from anterior cross- vein; 

 scales of veins dense, broadly ovate, black, with blue reflection on costa, those 

 towards apex of wing mostly short and obliquely subtruncate, Halteres whitish 

 with black knobs. 



Legs rather long and slender, black, with bronzy and blue reflection, femora 

 whitish beneath; tibise and tarsi with a brighter bronzy luster beneath. Claw 

 formula, 0.0-0.0-0.0. 



Length : Body about 3.3 mm. ; wing 3.3 mm. 



Male. Palpi short, slender, about one-seventh as long as proboscis, colored 

 as in the female. Antennae similar to those of the female, the joints with small 

 secondary subapical whorls, the basal whorls of longer and more abundant 

 hairs than in the female. Coloration similar to the female. Abdomen sub- 



